#103B53
Closest named color: Midnight Green (#073B4C). oklch(33.6% 0.063 237.6), rgb(16, 59, 83).
Aa
White text reads best on this color (11.84:1).
About this color
#103B53 is a dark, muted blue. In OKLCH its lightness is 34%, its chroma 0.063 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.014 away. White text reads best on it, at 11.84:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.77:1 |
| White text | 11.84:1 |
Values
| HEX | #103B53 |
| RGB | rgb(16, 59, 83) |
| HSL | hsl(201, 68%, 19%) |
| OKLCH | oklch(33.6% 0.063 237.6) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #103B53 | 11.84:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #103B53 | 1.77:1 | Fails | Lc 0.0 | Not readable |
| #103B53 text on white | 11.84:1 | AAA | Lc 96.9 | Preferred for body text |
| #103B53 text on black | 1.77:1 | Fails | Lc 0.0 | Not readable |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE9
oklch(88.5% 0.026 239.1)
-
Step 300
300
#A5C6DC
oklch(81% 0.047 237.4)
-
Step 400
400
#73A8CA
oklch(70.7% 0.075 237.4)
-
Step 500
500
#4B92BC
oklch(63.1% 0.095 236.9)
-
Step 600
600
#2A7BA9
oklch(55.6% 0.105 238.1)
-
Step 700
700
#1B6891
oklch(49.2% 0.097 237.5)
-
Step 800
800
#1A5575
oklch(42.8% 0.079 236.9)
-
Step 900
900 (this color)
#103B53
oklch(33.6% 0.063 237.6)
-
Step 950
950
#122937
oklch(26.9% 0.039 237.4)
#103B53 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #303B54 | 0.036 |
| Deuteranopia (no green cones) | #263453 | 0.030 |
| Tritanopia (no blue cones) | #004143 | 0.041 |
| Achromatopsia (no color) | #373737 | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #103B53
#103B53
oklch(33.6% 0.063 237.6)
- #4F2E13
#4F2E13
oklch(33.7% 0.063 57.5)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #103B53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.014
- Dark Blue Grey #1F3B4D ΔE 0.016
- Prussian Blue #1D3557 ΔE 0.024
- Gunmetal #293241 ΔE 0.042
- Marine Blue #01386A ΔE 0.044
- Charcoal #264653 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.047
- Onyx #343A40 ΔE 0.050
Use #103B53 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.